275485939 has 2 divisors, whose sum is σ = 275485940. Its totient is φ = 275485938.

The previous prime is 275485913. The next prime is 275485957. The reversal of 275485939 is 939584572.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275485939 is a prime.

It is not a weakly prime, because it can be changed into another prime (275485739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137742969 + 137742970.

It is an arithmetic number, because the mean of its divisors is an integer number (137742970).

Almost surely, 2^275485939 is an apocalyptic number.

275485939 is a deficient number, since it is larger than the sum of its proper divisors (1).

275485939 is an equidigital number, since it uses as much as digits as its factorization.

275485939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 52.

The square root of 275485939 is about 16597.7690970805. The cubic root of 275485939 is about 650.6785332491.

The spelling of 275485939 in words is "two hundred seventy-five million, four hundred eighty-five thousand, nine hundred thirty-nine".